Abstract: Disclosed in the present invention are a pyridone or pyrimidone derivative and an application thereof, and particularly disclosed are a compound as shown in formula (VI) and a pharmaceutically acceptable salt thereof.

Abstract: The present disclosure discloses a special cell general database, a method for establishing the special cell general database and a pattern correction method. The pattern correction method includes: providing a to-be-corrected layout including a to-be-corrected region and a to-be-corrected special cell structure region; acquiring a to-be-corrected minimum repeating cell pattern in the to-be-corrected special cell structure region; providing a special cell general database; acquiring an information of a cell correction pattern corresponding to the to-be-corrected minimum repeating cell pattern in the special cell general database; performing an optical proximity correction on the to-be-corrected region to acquire an information of a second correction pattern; acquiring a correction layout according to the information of the second correction pattern and the information of the cell correction pattern. The present disclosure can improve a correction efficiency of the pattern correction method.

Abstract: Disclosed are a kind of fused ring derivatives, and specifically disclosed are compounds as shown in formula (I) and pharmaceutically acceptable salts thereof.